When Busch and Muller introduced IQ technology it brought with it a defined light field now IQ2 Tech takes this on to a new generation designated Premium. Busch and Muller's Premium models offer an unprecedented large-area light field with an intensity of 60 or 80 Lux. The reflector and LED positioning and cooling are all radically improved. With the help of a prism, light output and efficiency are substantially increased. Additional LEDs combined with electronic control allow "dynamic light", adapted to the road situation. Powered by the dynamo the headlamp produces a homogeneous light field on a large scale as never before